#ifndef __SINGLE_H__
#define __SINGLE_H__

#include <iostream>
#include <stdio.h>
#include  <stdlib.h>

class CDb
{
	protected:
		CDb()
		{

		}
	public:
		~CDb()
		{

		}
		static CDb * getInstance();
	public:
		static CDb * _instance;
};
#endif
